GENERAL KNOWLEDGE

Detailed explanation-1: -A chemical reaction between the vinegar and the baking soda produces bubbles of carbon dioxide gas. The dish detergent in the vinegar helps the bubbles last longer than they would with just vinegar and baking soda.

Detailed explanation-2: -Mixing baking soda (sodium bicarbonate) and vinegar (acetic acid) causes a chemical reaction that produces a salt (sodium acetate) and water, as well as carbon dioxide gas.

Detailed explanation-3: -When vinegar (dilute acetic acid) and baking soda (sodium bicarbonate) mix together, the pair “foams up” to produce carbon dioxide gas, as well as liquid water, acetate ions and sodium ions. The carbon dioxide gas is what produces the bubbles.

Detailed explanation-4: -This is evidence of a chemical change because the gas is a new substance. 2. In the reaction between vinegar and baking soda, the reactants are vinegar (acetic acid) and baking soda (sodium bicarbonate). The products are sodium acetate, water, and carbon dioxide gas.

Detailed explanation-5: -It took energy to break the baking soda and vinegar apart and energy was released when the carbon dioxide, sodium acetate, and water were formed. Since more energy was needed to break the baking soda and vinegar apart, the temperature went down. This reaction is called an endothermic reaction.